Car-underframe.



H. M. PPLAGER.

UAB UNDEEFRAME.

PPLIGATION FILED rms. 4, 1909.

926,074. Patented June 22,1909.

2 SHEETS-SHEET 1.

l l I l 7, m; y maagk- H. M. .'PPLAGER.

CAR UNDERFRAME.

APPLICATION FILED PERA. 1909.

@6,97% Y Patented June 22,1909.

2 SHEBTS-SHEET 2.

UNTTED STATES PATENT crimen.

HARRY M. PFLAGER, or sT. Louis, MIssouRr, AssieNoR To TnANsoir nears? einen con PANY, OF ST. LOUIS, MISSOURI, A CORPORATION 0F CAR-UNDERFBAM.

sp-eanicain'nn of nettare rittens.'

1 A rarest/aa .rims se, ieee.

originar application filed June 5, '1908, serial No. 436,639. Divided aan aus taallessen inse `February 4, 1ste.

. seran No. 478,111.

To all whom 'it may "concern: l

Be it known that I, HARRY M. PFLAGER, citizen of the United States, residing at St. Louis, in the State of Missouri, have invented a new and luseful Improvement in Car-Under-frames, of which the following is a specie ication:

My invention relates particularly to a inea tallic ear under'iramel having a single longitudinal center sill extending between and adapted to butt endwise against` the bodybolsters, to which the end portions of the sill are riveted or otherwise fixed, andis a divi-v sion of the invention for which I ha've obtained Letters PatentY of the UnitedStates, dated March 30,-1909,Number 916,586,ior improvement in car underframes, and my invention has for its, object to increase the eiliciency and resistance of the underframe 'to the stress of the draft-gear and abnormal end shock. i

It consists in features of novelty as herein'q after .described and claimed, reference being had toy the accompanying vdrawing forming part of thisspeciiication, Whereon, I

Figure 1, is a top plan view of one end and adjacent portion of my improved metallic car underi'rame with ajpreferable form of draf*- gear appliedthereto; Fig. 2, a vertical longitudinal section to enlarged scale, through the underframe and draft-gear on line 2, 2, in Fig. 1; Fig. 3, a horizontal section thereof on line, 3, in Fig. 2, and Figs. 4 and 5, vertical transverse sections through the underiranie and draft-gear (omitting the springs) on lines 4, 4, and 5, 5, respectively, in Fig. 3.

Like letters and numerals of reference denote like parts in all the figures. a represents one end and the adjacent portion of a metallic car underframe embodying my improvement and comprising in the present case, two opposite longitudinal side sills 1, an endsill 2 having the dead-block 2 and iixed at its ends to the corresponding ends of the side` sills 1, a body-bolster l) liXed at, its ends to the side sills 41 adjacent to the end sill 2 and secured to the latter by two opl positel horizontal braces 8 which converge from the body-bolster b, one on each side of and at a suitable distance from the longitudinal center of the underfrajme a, to the end sill 2 at its middle portion, and a single longitudinal center sill c which is adapted to butt endWise against the rear side of the 'preferably composed 'of cast stee throughout and lei-shaped in cross section, as

l carryinfJr bodybolster I7 to which it isned as hereinafter more particularly referred to, the bodybolster b and center sill e being resv actively integral d represents the car draft-gear which may be oi. any suitable ty e, lpreierably as shown and similar to that escrihedv n-,the 'United States Letters .Patent granted tome Qianuary 23, 1906, Number 810,805, for improvement in draft-gear for railroad cars, except that in g out my invention the drartsprings are ap niedirectly to the Acen'tersill. c in lieu of to tire body-bolster as in the saidpatent, for which purpose the'end ofthe Vcenter sill c is closed or formed transversely with an nrw right rectan nier-shapedy end-plate 4 which unites with t etop and bottom flanges 5, 5, and web 6 oi the center silla and is adapted to butt at its outerface against the web 7 of the body-bolste`r b, to which it is preferably Yfixed by rivets 9, the adjacent portions ofthe bottom lianges -5 ol the center sill c bein r preferably widened, according 'to the later-eil extension of the end-plate 4 beyond the body of the center sill'c, and adapted to be sup orted thereat on the bottom llanves 8 of the i only-bolster l) to Which'it is rigidly secured by rivets (or bolts) 9. thepresent case comprises the draw-bar e having a horizontally arranged cross-head 1G at its inner or rear end in the face of which opposite to the front side ofthe body-bolster is formed at each side of the longitudinal center of the underframe a and center sill c, a cylindrical housing or pocket 1 1, While on the front side ofthe web 7 of the body-bolster b opposite to and in central longitudinal alinement with each housing 11, is preferably formed a cylindrical housing or pocket 11, the housings 11, 11', being in the same horizontal plane with each other.

l/Vithin the housings 11, 11 are plaeedthe buffing springs 12 which in the normal position of the draft-gear d bear at their outer or, front ends against. the bottoni -oi" the housings 11 (or cross-head 1 0 oi' the drawbar e) and at their inner or rear ends against the web 7 of the body-bolster b.

To the cross-head 10, at or adjacent to each end thereof, is coupled by a pin 13 the arm 14 of,'a yoke f which is arranged horizontally in the plane of the draw-bar @and The draft-gear d in tion of the draft-gear d hear at their outer or or inner side of the end-platee nf the center f doing compresses the Y -being slidable through openings formed or openinG l@ through its web 5 adjacent to the end-pitite e for abiing the yolrej" to be assembled and removed, and for permitting @free play thereto at all times in the operation adapted to straddle the end-plate si of the l center sill c iroin its rear si e7 the arms 14 therefor transversely through the web 7 of the body-bolster b, andthe c cntezf sill c having an elongated longitudina lightening hole of the draft-gear d. 0n the inner or rear side oi the end-plate 4, at each side oi' the longitudinal een-ter of the underframe a and web 6 ci 'flieeenter sill is formed cyiindrical housing er pocket 3 7, While on {erin} the of the yolief opino sitei'to each housing l?, is formed iinilar' housing i7', the housings i?, li, A beingA in entrai longitudinal alineinent with each other and preferably, with the heusings il, il llfithin the housings l?, i7", are placed' the draft springs i8 which in the normal posin rear ends fagainst the bottoni of the housings 17 (or yoke f) and at their inner or front 'l x n ends against the bottoni oi the housings l? -drai`t springs 18 is a the web 7 oi the body-bolster i5, and at the essere saine time release the yoke f from the draft f springs 18 which lie idle With-in their hous'ingsi?, 17].

By my invention the lie initially and directly to the center s' c instead of to the body-bolster asin the said patent, While the.-

pressure of the hurling springs 12 although initi-c ly appiied directly to the body-bolster as in the said patent, is nevertheless. practieaily transmitted by the latter. to the center sill e throughv its end-plate 4, whereby 'the maximum rigidity, strength, andresistancev ressure of .the v of the nnderfraine e are insured in the operation of the draft-gear or- When subjected to abnormal end shock.

What l claim as my invention and desire te seeure by Letters Patent is v In a metallic car underframe, nation oi" the body-holsters having respectively, hof-sing at each side of the longitudinal-center of .the underfranie for the bulithe combie ing spring of a suitable draft-gear,l a center sill lextending Alongitudinally between the bedy-baisters, an upright plateforming part of the said sill across each end A edapted to butt on its front side against the cerresponding body-bolster, housings for the draft springs of the-said gear onthe rear side of the'said plate, the said builing and draft springs being adapted to bear at their inner ends respectively, against the body-bolster and the rear side of the said .late within the said housings, and means for 'i -ing the said siii to the body-bolsters, vsubstagntiell y as described.

HARRY M. PFLAGER.

1Vlfitnesses:

EDWARD W. FARRELL, Het; C. BEILLVILLE.

thereof and 

